text: """
      Problem 1:
      Find the sum of all the multiples of 3 or 5 below 1000.
  """
  
  
  def find_sum(number):
      answer = 0
      for i in range(number):
          if i % 3 == 0 or i % 5 == 0:
              answer += i
      
      return answer
  
  
  print('answer: ', find_sum(1000))
  
  